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gnu: Add perl-autovivification.

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* gnu/packages/perl.scm (perl-autovivification): New variable.
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Ricardo Wurmus 2016-11-23 16:01:39 +01:00
parent d4ba9a5f21
commit 3f1df54cc0
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1 changed files with 27 additions and 0 deletions
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27
gnu/packages/perl.scm
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@ -266,6 +266,33 @@ (define-public perl-array-utils
list manipulation routines.")
(license (package-license perl))))
(define-public perl-autovivification
(package
(name "perl-autovivification")
(version "0.16")
(source
(origin
(method url-fetch)
(uri (string-append "mirror://cpan/authors/id/V/VP/VPIT/"
"autovivification-" version ".tar.gz"))
(sha256
(base32
"1422kw9fknv7rbjkgdfflg1q3mb69d3yryszp38dn0bgzkqhwkc1"))))
(build-system perl-build-system)
(home-page "http://search.cpan.org/dist/autovivification")
(synopsis "Lexically disable autovivification")
(description "When an undefined variable is dereferenced, it gets silently
upgraded to an array or hash reference (depending of the type of the
dereferencing). This behaviour is called autovivification and usually does
what you mean but it may be unnatural or surprising because your variables get
populated behind your back. This is especially true when several levels of
dereferencing are involved, in which case all levels are vivified up to the
last, or when it happens in intuitively read-only constructs like
@code{exists}. The pragma provided by this package lets you disable
autovivification for some constructs and optionally throws a warning or an
error when it would have happened.")
(license (package-license perl))))
(define-public perl-base
(package
(name "perl-base")